Aging detection equipment

Abstract

The invention relates to aging detection equipment which comprises a mounting assembly, a detection assembly, a host, a temperature controller and a gas flow controller, the mounting assembly comprises a mounting cavity, a sample cell and a heating assembly, the mounting cavity forms an open mounting cavity, the sample cell and the heating assembly are both located in the mounting cavity, and the sample cell is arranged on the heating assembly; the detection assembly comprises a detection cavity, a photon detector and a cavity partition plate, a detection cavity with an opening opposite to the opening of the mounting cavity is formed in the detection cavity, the photon detector is arranged in the detection cavity, and the cavity partition plate is arranged at the opening of the detection cavity and detachably connected with the mounting cavity in a sealed mode; the cavity partition plate is provided with transparent detection windows opposite to the photon detector and the sample pool, the host is electrically connected with the photon detector, the temperature controller can control the temperature of the sample pool assembly to be a preset temperature through the heating assembly, and the gas flow controller is used for controlling the flow of gas flowing into the mounting cavity. The aging detection equipment can accurately detect the aging degree of the high polymer material.

Description

Technical Field

[0001] The present application relates to the technical field of material reliability testing, and in particular to an aging detection device. Background Art

[0002] Polymer materials are a class of materials composed of long-chain polymers. Due to their special structure and chemical properties, polymer materials have many unique properties and a wide range of applications. Common ones include plastics, rubber and fibers, adhesives, film materials, etc.

[0003] During processing, storage, and use, polymer materials gradually undergo changes in their physical and chemical properties, deteriorating their mechanical properties and ultimately losing their usability. This process is called "aging." The degree of polymer aging can impact the reliability and lifespan of a product. Therefore, accurately measuring the degree of polymer aging has become a key concern in polymer material production and application. Summary of the Invention

[0004] Based on this, it is necessary to provide an aging detection device that can accurately detect the aging degree of polymer materials to address the above problems.

[0005] The technical solution is as follows:

[0006] An aging detection device, comprising:

[0007] The mounting assembly includes a mounting cavity, a sample cell, and a heating assembly. The mounting cavity forms a light-proof mounting cavity with one end open. The sample cell and the heating assembly are both located in the mounting cavity, and the sample cell is disposed on the heating assembly. The sample cell is used to place a sample to be tested. The mounting cavity is provided with an air inlet interface and an air outlet interface. Both the air inlet interface and the air outlet interface are in communication with the mounting cavity, and the air outlet interface is used to allow the gas in the mounting cavity to flow out.

[0008] A detection assembly, comprising a detection cavity, a photon detector, and a cavity partition. The detection cavity is disposed on the mounting cavity, forming a light-proof detection cavity with one end open, the opening of the detection cavity being arranged opposite to the opening of the mounting cavity, the photon detector being disposed within the detection cavity, the cavity partition cover being disposed at the opening of the detection cavity and being detachably sealed to the edge of the opening of the mounting cavity, the cavity partition being provided with a detection port opposite to both the photon detector and the sample cell, the detection port being sealed with a transparent detection window;

[0009] a host, the host being electrically connected to the photon detector;

[0010] A temperature controller, the temperature controller being electrically connected to the host and the heating component, and the temperature controller being capable of controlling the temperature of the sample cell component at a preset temperature through the heating component;

[0011] A gas flow controller is used to connect the air inlet interface with the air source device, and the gas flow controller is used to control the flow of gas flowing into the installation cavity.

[0012] In the aforementioned aging testing equipment, the testing chamber is mounted on the mounting chamber, with its opening facing the mounting chamber. A cavity baffle cover is mounted on the testing chamber opening and removably connected to the edge of the mounting chamber opening. This allows the mounting chamber opening to be opened by releasing the connection between the mounting chamber and the cavity baffle, facilitating the loading or replacement of polymer material samples to be tested in the sample cell assembly. Once sample loading is complete and the mounting chamber and cavity baffle are locked, aging testing can begin. Among them, since the sample pool is arranged in the heating assembly, the temperature controller is electrically connected to the host and the heating assembly, and the gas outlet interface allows the gas in the installation cavity to flow out, and the gas inlet interface is connected to the gas flow controller, so during the detection process, turning on the gas flow controller can make the gas flow in the installation cavity at a specific flow rate to ensure that the sample to be tested is in a specific gas environment condition for the aging test; turning on the temperature controller and the host, that is, the preset temperature of the sample pool during the detection process can be set by the host, so that the temperature controller can control the temperature of the sample pool assembly to the preset temperature under the control of the host through the heating assembly, ensuring that the sample pool can stably heat the sample to be tested during the detection process, so that the sample to be tested can emit photons under heating. And since the installation cavity and the detection cavity are both opaque cavities, and the photon detector and the sample pool are both arranged opposite to the transparent detection window, during the detection process, external light will not enter the installation cavity and the detection cavity, thereby ensuring that the photons detected and collected by the photon detector are all from the sample to be tested, and then when the photon detector feeds the collected photon data back to the host, the user can accurately determine the aging degree of the polymer material based on the acquired photon data. Therefore, the aging detection equipment can use the principle of photon detectors to detect the amount of photons in a confined space to conveniently and accurately detect the degree of aging of polymer materials.

[0013] The technical solution is further described below:

[0014] In one embodiment, the heating component includes a heating table, a heating tube and a first temperature detector. The sample pool is arranged on the heating table. The heating tube and the first temperature detector are both arranged on the heating table and are electrically connected to the temperature controller. The first temperature detector is used to detect the temperature of the heating table. The temperature controller can adjust the current passing through the heating tube when the first temperature detector detects that the temperature is higher or lower than the preset temperature.

[0015] In one embodiment, the mounting assembly includes a heat-insulating frame and a bracket both provided in the mounting cavity, one end of the bracket being connected to the cavity wall of the mounting cavity, and the other end being connected to a side of the heating platform facing away from the sample pool, and the heat-insulating frame being provided between the heating platform and the bracket;

[0016] And / or, the installation cavity is further provided at a first vacuum joint, and the heating tube and the first temperature detector are both electrically connected to the temperature controller via the first vacuum joint.

[0017] In one embodiment, the detection assembly includes a cold sleeve, a cold conduction platform and two cold conduction tubes, all of which are arranged in the detection cavity. The cold sleeve is arranged on the outer periphery of the photon detector, and the cold conduction platform is arranged in contact with the outer surface of the cold sleeve. One end of one of the two cold conduction tubes is connected to the liquid inlet end of the cold conduction platform, and the other end is used to connect with the liquid outlet end of the cold conduction liquid device; one end of the other of the two cold conduction tubes is connected to the liquid outlet end of the cold conduction platform, and the other end is used to connect with the liquid return end of the cold conduction liquid device.

[0018] In one embodiment, the detection component includes a second temperature detector, which is arranged between the photon detector and the transparent detection window. The second temperature detector is electrically connected to the temperature controller. A liquid cooling pump is arranged between one of the two cooling tubes and the cooling liquid device. The liquid cooling pump is connected to the temperature controller. The temperature controller can control the liquid cooling pump to increase the speed when the second temperature detector detects that the temperature exceeds the preset detection temperature.

[0019] In one embodiment, the detection cavity is provided with two cooling liquid interfaces, one of the two cooling liquid interfaces is used to connect the liquid outlet end of the cooling liquid device with the corresponding cooling pipe, and the other of the two cooling liquid interfaces is used to connect the liquid return end of the cooling liquid device with the corresponding cooling pipe;

[0020] And / or, the detection assembly includes a support frame arranged in the detection cavity, one end of the support frame is connected to the side wall of the detection cavity, and the other end is connected to the cold sleeve.

[0021] In one of the embodiments, the detection assembly comprises a light shield, a transmission rod and a driving member, the light shield is movably arranged between the photon detector and the cavity partition plate, the driving member is arranged outside the detection cavity, one end of the transmission rod is drivingly connected with the driving member, and the other end of the transmission rod extends into the detection cavity and is connected with the light shield, the transmission rod is rotationally connected with the detection cavity, the light shield has a light shielding position and a light guiding position, at the light shielding position, the light shield is oppositely arranged with the transparent detection window and sealingly cooperates with the cold jacket to prevent light from entering the photon detector, at the light guiding position, the light shield is oppositely arranged with the transparent detection window in the opposite direction of the photon detector and the transparent detection window, and the light shield is capable of moving between the light shielding position and the light guiding position under the driving of the driving member.

[0022] In one of the embodiments, the relative direction of the photon detector and the transparent detection window is consistent with the extension direction of the transmission rod, the light shield is arranged in parallel with the transparent detection window, the detection assembly comprises a limiting plate, the limiting plate is arranged on the side of the light shield close to the transparent detection window and oppositely arranged with the transparent detection window, a detection opening opposite to the transparent detection window is formed in the limiting plate, first and second limiting protrusions are protrudingly arranged on the side of the limiting plate facing the cold jacket, the first and second limiting protrusions are respectively arranged on opposite sides of the limiting plate and are both connected with the cold jacket, at the light shielding position, the light shield abuts against the first limiting protrusion, and at the light guiding position, the light shield abuts against the second limiting protrusion.

[0023] In one of the embodiments, the outer surface of the detection cavity is protrudingly arranged with a light shielding member, the light shielding member is formed with a transmission hole in communication with the detection cavity, one end of the transmission rod remote from the driving member penetrates through the transmission hole and is connected with the light shield, and the transmission rod is rotationally and sealingly cooperated with the hole wall of the transmission hole.

[0024] In one of the embodiments, the detection cavity is provided with a second vacuum joint, the photon detector is electrically connected with the main machine through the second vacuum joint;

[0025] And / or, the detection cavity is provided with a vacuum interface, the vacuum interface is in communication with the detection cavity, and the vacuum interface is used for being in communication with a vacuumizing device. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 FIG. 1 is a structural schematic view of an aging detection device in one of the embodiments.

[0027] Figure 2 FIG. 2 is a sectional structural schematic view of the mounting assembly and the detection assembly in one of the embodiments.

[0028] Figure 3 The opening of the mounting cavity in an embodiment is shown by a schematic diagram from closing to opening.

[0029] Figure 4 A partial perspective structural schematic diagram of the detection assembly in an embodiment.

[0030] Figure 5 A structural schematic diagram of the bracket, heat insulation frame and heating assembly in an embodiment.

[0031] Figure 6 A structural schematic diagram of the light shield and the cold sleeve and the limiting plate in cooperation in an embodiment.

[0032] Figure 7 A structural schematic diagram of the light shield in an embodiment from the light shielding position to the light guiding position.

[0033] Explanation of reference signs:

[0034] 100, aging detection equipment; 1, main machine; 2, temperature controller; 3, gas flow controller; 4, mounting assembly; 41, mounting cavity; 41a, mounting cavity; 411, gas inlet interface; 412, gas outlet interface; 413, first vacuum joint; 42, bracket; 43, heat insulation frame; 44, heating assembly; 441, heating table; 442, first temperature detector; 443, heating pipe; 45, sample cell; 5, detection assembly; 5a, second vacuum joint; 51, photon detector; 52, detection cavity; 521, side plate; 522, cover plate; 523, connecting piece; 52a, detection cavity; 531, cold guiding table; 532, cold guiding pipe; 533, cold guiding liquid interface; 54, vacuum interface; 551, driving piece; 552, light shielding piece; 553, transmission rod; 554, fixing piece; 555, light shielding plate; 556, limiting plate; 556a, first limiting protrusion; 556b, second limiting protrusion; 556c, detection port; 561, cold sleeve; 562, support frame; 57, cavity partition plate; 571, detection port; 572, transparent detection window; 58, second temperature detector. DETAILED DESCRIPTION

[0035] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below in combination with the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0037] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0038] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0041] See Figures 1 to 3 An embodiment of the present application provides an aging detection device 100, comprising a mounting component 4, a detection component 5, a host 1, a temperature controller 2 and a gas flow controller 3.

[0042] The mounting assembly 4 includes a mounting cavity 41, a sample pool 45 and a heating assembly 44. The mounting cavity 41 forms a mounting cavity 41a with an opening at one end and which is opaque. The sample pool 45 and the heating assembly 44 are both located in the mounting cavity 41a and the sample pool 45 is arranged on the heating assembly 44. The sample pool 45 is used to place the sample to be detected. The mounting cavity 41 is provided with an air inlet interface 411 and an air outlet interface 412. The air inlet interface 411 and the air outlet interface 412 are both communicated with the mounting cavity 41a. The air outlet interface 412 is used to allow the gas in the mounting cavity 41a to flow out. The detection assembly 5 includes a detection cavity 52, a photon detector 51 and a cavity partition 57. The detection cavity 52 is arranged on the mounting cavity 41. The detection cavity 52 forms a detection cavity 52a with an opening at one end and which is opaque. The opening of 52a is arranged opposite to the opening of the installation cavity 41a, the photon detector 51 is arranged in the detection cavity 52a, the cavity partition 57 covers the opening of the detection cavity 52a and is detachably sealed with the opening edge of the installation cavity 41a, the cavity partition 57 is provided with a detection port 571 opposite to the photon detector 51 and the sample pool 45, and the detection port 571 is sealed with a transparent detection window 572; the main unit 1 is electrically connected to the photon detector 51; the temperature controller 2 is electrically connected to the main unit 1 and the heating component 44, and the temperature controller 2 can control the temperature of the sample pool 45 component to a preset temperature through the heating component 44; the gas flow controller 3 is used to connect the air inlet interface 411 and the gas source device, and the gas flow controller 3 is used to control the flow of gas flowing into the installation cavity 41a.

[0043] In the aforementioned aging detection device 100, the detection chamber 52 is disposed on the mounting chamber 41. The opening of the detection chamber 52a is positioned opposite the opening of the mounting chamber 41a. A chamber partition 57 covers the opening of the detection chamber 52a and is removably connected to the opening edge of the mounting chamber 41a. This allows the opening of the mounting chamber 41a to be opened by releasing the connection between the mounting chamber 41 and the chamber partition 57, thereby facilitating the loading or replacement of a polymer material sample to be tested in the sample cell 45. Once the sample is loaded and the mounting chamber 41 and the chamber partition 57 are locked, the aging detection test can be performed. Among them, since the sample pool 45 is arranged in the heating component, the temperature controller 2 is electrically connected to the main unit 1 and the heating component 44, and the gas outlet interface 412 can allow the gas in the installation cavity 41a to flow out, and the gas inlet interface 411 is connected to the gas flow controller 3, so during the detection process, turning on the gas flow controller 3 can make the gas flow in the installation cavity 41a at a specific flow rate to ensure that the sample to be detected is in a specific gas environment condition for the aging test; turning on the temperature controller 2 and the main unit 1, that is, the preset temperature of the sample pool 45 during the detection process can be set through the main unit 1, so that the temperature controller 2 can control the temperature of the sample pool 45 component to the preset temperature through the heating component 44 under the control of the main unit 1, ensuring that the sample pool 45 can stably heat the sample to be detected during the detection process, so that the sample to be detected can emit photons under heating. Since both the mounting cavity 41a and the detection cavity 52a are opaque, and the photon detector 51 and the sample cell 45 are positioned opposite the transparent detection window 572, no external light enters the mounting cavity 41a and the detection cavity 52a during the detection process. This ensures that the photons detected and collected by the photon detector 51 all originate from the sample to be tested. Consequently, when the photon detector 51 feeds the collected photon data back to the host 1, the user can accurately determine the degree of aging of the polymer material based on the acquired photon data. Therefore, the aging detection device 100 can utilize the principle of the photon detector 51 detecting photons in a confined space to conveniently and accurately detect the degree of aging of the polymer material.

[0044] For example, in one embodiment, Figure 1 、 Figure 2 and Figure 3As shown, the air inlet interface 411 and the air outlet interface 412 are respectively arranged on both sides of the installation cavity 41 to ensure that the gas newly introduced into the installation cavity 41a during the detection process can replace the original gas in the installation cavity 41a, thereby taking away the gas generated by the volatilization of the material during the detection process and ensuring the stability of the temperature of the sample pool 45. Furthermore, the air inlet interface 411 can be connected to the gas flow controller 3 through a light-shielding air pipe to avoid heat absorption during the gas circulation process. The air outlet interface 412 can be directly connected to the external environment to discharge the gas from the installation cavity 41a to ensure the reliable conduct of the test; or, it can also be connected to the exhaust gas treatment device through a micro-flow valve to use the micro-flow valve to control the connection and disconnection of the air outlet interface 412 and the exhaust gas treatment equipment, and use the exhaust gas treatment equipment to purify the exhaust gas to avoid exhaust gas pollution to the environment.

[0045] It should be noted that since different gases and gas concentrations have different effects on the aging of materials, the gas type and flow rate of the gas flow controller 3 connected to the installation cavity 41a can be designed according to the test requirements. For example, the gas types introduced include but are not limited to nitrogen, oxygen, argon, etc.

[0046] Schematically, the sample pool 45 is made of a low-luminescence material to prevent the sample pool 45 from emitting light during the test and affecting the reliability of the test. Furthermore, the sample pool 45 is concave toward the side away from the test cavity 52, thereby utilizing the raised edge of the sample pool 45 to prevent the sample to be tested from heating, melting, and dispersing.

[0047] Illustratively, the transparent detection window 572 can be made of quartz glass, thereby ensuring that light can reliably pass through the transparent detection window 572. Furthermore, the detection port 571 is opened at the center of the cavity partition 57.

[0048] Optionally, in one embodiment, the gas flow controller 3 is electrically connected to the host 1 and can adjust the flow rate of gas flowing into the installation cavity 41a under the control of the host 1. This facilitates automated operation. In other embodiments, the gas flow controller 3 can also be controlled independently, allowing the user to flexibly adjust the flow rate as needed.

[0049] Optionally, in one embodiment, Figure 3 As shown, the detection cavity 52 includes a side plate 521, a cover plate 522 and a connecting piece 523. The side plate 521 is a cylindrical structure. The cover plate 522 is connected to one end of the side plate 521 to jointly form a detection cavity 52a. The connecting piece 523 is arranged on the outer periphery of the other end of the cover plate 522. The connecting piece 523 is sealed with the cavity cover plate 522.

[0050] Schematically, a cavity sealing ring is provided around the opening edge of the installation cavity 41a, and multiple screws pass through the connecting piece 523 and the cavity partition 57 and are connected to the opening edge of the installation cavity 41a, so that when the cavity partition 57 is covered on the opening of the detection cavity 52a, it can be sealed with the opening edge of the installation cavity 41a through the cavity sealing ring.

[0051] Optionally, in one embodiment, Figure 3 and Figure 4 As shown, the detection chamber 52 is provided with a second vacuum connector 5a, through which the photon detector 51 is electrically connected to the host 1. This facilitates convenient connection between the photon detector 51 and the host 1, while also ensuring the stability and reliability of the internal structure of the detection assembly 5. Schematically, the second vacuum connector 5a is provided on the cover 522 of the detection chamber 52, and a cable connects the second vacuum connector 5a to the photon detector 51.

[0052] Optionally, in one embodiment, Figure 3 and Figure 4 As shown, the detection chamber 52 is provided with a vacuum port 54, which communicates with the detection chamber 52a and is used to connect to a vacuum pump. This allows the detection chamber 52a to be evacuated via the vacuum port 54, thereby utilizing the vacuum properties to better isolate the detection chamber 52a from heat exchange with the outside world, thereby helping to better control the temperature of the detection chamber 52a. Schematically, the vacuum port 54 is provided on the cover 522 of the detection chamber 52.

[0053] In one embodiment, combined Figure 2 and Figure 5As shown, the heating assembly 44 includes a heating table 441, a heating tube 443, and a first temperature detector 442. The sample pool 45 is located on the heating table 441. The heating tube 443 and the first temperature detector 442 are both located on the heating table 441 and are both electrically connected to the temperature controller 2. The first temperature detector 442 is used to detect the temperature of the heating table 441. The temperature controller 2 can adjust the current flowing into the heating tube 443 when the first temperature detector 442 detects that the temperature is higher or lower than a preset temperature. In this way, during the detection process, the heating tube 443 can heat the heating table 441, so that the heating table 441 can transfer heat to the sample pool 45 to heat the sample to be detected located in the sample pool 45. Among them, since the first temperature detector 442 can detect the temperature of the heating table 441 in real time and feed the detected temperature back to the temperature controller 2, the temperature controller 2 can determine whether the current temperature of the heating table 441 is higher or lower than the preset temperature required for the test, and then adjust the current of the heating tube 443 according to the judgment result. For example, when it is higher than the preset temperature, the current is reduced; when it is lower than the preset temperature, the current is increased. The temperature of the heating table 441 is adjusted by adjusting the heat generation of the heating tube 443, thereby ensuring that the sample pool 45 can stably heat the sample to be tested during the detection process, and ensuring that the sample to be tested can stably emit photons, thereby ensuring the reliability of the detection.

[0054] Schematically, the heating plate 441 can be made of a material with a high thermal conductivity coefficient so that the heating plate 441 can better transfer heat to the sample pool 45, thereby ensuring the detection temperature of the sample to be tested. Furthermore, the bottom of the sample pool 45 is tightly fitted to the heating plate 441 by screws, thereby ensuring good heat transfer between the sample pool 45 and the heating plate 441.

[0055] Optionally, in one embodiment, Figure 2 and Figure 3 As shown, the mounting cavity 41 is also provided with a first vacuum connector 413, through which the heating tube 443 and the first temperature detector 442 are both electrically connected to the temperature controller 2. This allows the heating tube 443 and the first temperature detector 442 to be conveniently connected to the temperature controller 2, while also facilitating the stability and reliability of the internal structure of the mounting assembly 4. Schematically, the first vacuum connector 413 is connected to the heating tube 443 and the first temperature detector 442 via a cable, and the first vacuum connector 413 is connected to the temperature controller 2 via a cable.

[0056] Optionally, in one embodiment, combined Figure 2 and Figure 5As shown, the mounting assembly 4 includes a heat-insulating frame 43 and a bracket 42, both of which are arranged in the mounting cavity 41a. One end of the bracket 42 is connected to the cavity wall of the mounting cavity 41a, and the other end is connected to the side of the heating table 441 away from the sample cell 45. The heat-insulating frame 43 is arranged between the heating table 441 and the bracket 42. In this way, the sample cell 45 and the heating table 441 can be suspended in the mounting cavity 41a using the bracket 42 to avoid the heating table 441 and the sample cell 45 being directly connected to the cavity wall of the mounting cavity 41a, thereby reducing the heat exchange between the heating table 441 and the sample cell 45 and the outside world, and improving the stability of temperature control. The provision of the heat-insulating frame 43 is conducive to isolating the heat exchange between the heating table 441 and the bracket 42, thereby helping to further improve the stability of temperature control.

[0057] Schematically, the heat insulating frame 43 is made of a material that is resistant to high temperatures and has a low thermal conductivity, thereby ensuring that the heat insulating frame 43 can effectively isolate heat exchange and extend the service life of the heat insulating frame 43. Furthermore, the heat insulating frame 43 is fixed to the bracket 42 and the heating platform 441 by screws.

[0058] Optional, such as Figure 2 and Figure 5 As shown, the bracket 42 includes a support plate and a support leg. The support leg is in an "L" shape. The bottom of the support leg is fixedly connected to the bottom of the installation cavity 41a, and the support plate is fixedly connected to the top of the support leg. The insulation frame 43 is arranged on the other side of the bracket 42 plate away from the support leg.

[0059] In one embodiment, Figure 2 、 Figure 4 and Figure 6 As shown, the detection assembly 5 includes a cold sleeve 561, a cold platform 531 and two cold pipes 532, all of which are arranged in the detection cavity 52a. The cold sleeve 561 is arranged on the outer periphery of the photon detector 51, and the cold platform 531 is arranged in contact with the outer surface of the cold sleeve 561. One end of one of the two cold pipes 532 is connected to the liquid inlet end of the cold platform 531, and the other end is used to connect to the liquid outlet end of the cold liquid device; one end of the other of the two cold pipes 532 is connected to the liquid outlet end of the cold platform 531, and the other end is used to connect to the liquid return end of the cold liquid device. In this way, during the detection process, the cooling liquid can circulate between the cooling liquid device, the cooling tube 532, and the cooling platform 531, so that the flowing cooling liquid can ensure that the cooling platform 531 is always in a low temperature state, and the cooling platform 531 can transfer the low temperature to the cold sleeve 561 arranged on the outer periphery of the photon detector 51 to cool the photon detector 51, thereby ensuring that the photon detector 51 can be kept in a low temperature state during the detection process, avoiding high temperature from damaging the sensitivity of the photon detector 51, and ensuring the accuracy of the detection.

[0060] Illustratively, the cooling stage 531 is made of a material with high thermal conductivity, so that heat can be well transferred between the cooling stage 531 and the cooling jacket 561 , thereby ensuring that the photon detector 51 can be kept in a low temperature state.

[0061] Schematically, the two cooling pipes 532 are light-proof and shielding pipes, so as to ensure that the cooling liquid does not heat up due to absorbing external light during the flow of the cooling liquid. The cooling liquid may include but is not limited to liquid nitrogen, water cooling, etc.

[0062] Furthermore, in one embodiment, in combination Figure 2 and Figure 6 As shown, the detection component 5 includes a second temperature detector 58, which is arranged between the photon detector 51 and the transparent detection window 572. The second temperature detector 58 is electrically connected to the temperature controller 2. A liquid cooling pump is provided between one of the two cooling tubes 532 and the cooling liquid device. The liquid cooling pump is connected to the temperature controller 2. When the second temperature detector 58 detects that the temperature exceeds the preset detection temperature, the temperature controller 2 can control the liquid cooling pump to increase the speed. In this way, during the detection process, the second temperature detector 58 can detect the temperature of the location of the photon detector 51 in real time, and feed the detected temperature back to the temperature controller 2, so that the temperature controller 2 can judge whether the current temperature environment is higher than the maximum detection temperature acceptable for the photon detector 51 to work based on the detected temperature, wherein the preset detection temperature is the maximum detection temperature acceptable to the photon detector 51 during its operation; therefore, when the detected temperature is higher than the preset detection temperature, the speed of the liquid cooling pump can be controlled to increase to speed up the circulation speed of the cooling liquid in the cooling platform 531, thereby ensuring that the cooling sleeve 561 can effectively transfer the cold energy to the photon detector 51, so that the photon detector 51 can always be in a low temperature state, ensuring the sensitivity of the photon detector 51, ensuring that the photon detector 51 can accurately obtain the photons emitted by the sample to be detected, and ensuring the reliability of the detection.

[0063] Schematically, the preset detection temperature can be input into the temperature controller 2 through the host 1. Further, the preset detection temperature can be between 10 and 20 degrees Celsius. Preferably, the preset detection temperature can be 15 degrees Celsius, at which the sensitivity of the photon detector 51 is the best.

[0064] Schematically, the second temperature detector 58 can be connected to the temperature controller 2 via the second vacuum connector 5a. The second temperature detector 58 and the second vacuum connector 5a are connected via a cable.

[0065] Optionally, in one embodiment, Figures 2 to 4As shown, the detection cavity 52 is provided with two cooling liquid interfaces 533. One of the two cooling liquid interfaces 533 is used to connect the liquid outlet of the cooling liquid device with the corresponding cooling pipe 532, and the other of the two cooling liquid interfaces 533 is used to connect the liquid return end of the cooling liquid device with the corresponding cooling pipe 532. In this way, when using the aging detection device 100 for testing, the cooling pipe 532 can be conveniently connected to the cooling liquid device. This also helps to ensure the stability and reliability of the structural components within the detection cavity 52a.

[0066] Illustratively, the two cooling liquid interfaces 533 are both disposed on the cover plate 522 .

[0067] Optionally, in one embodiment, combined Figure 4 and Figure 6 As shown, the detection assembly 5 includes a support frame 562 disposed in the detection cavity 52a, one end of the support frame 562 being connected to the side wall of the detection cavity 52a, and the other end being connected to the cold jacket 561. Thus, the cold jacket 561 can be securely fixed within the detection cavity 52a via the support frame 562, thereby enabling the photon detector 51, the cold stage 531, and the cold tube 532 to be stably disposed within the detection cavity 52a, thereby ensuring that the photon detector 51 can reliably detect photons dissipated by the sample to be detected.

[0068] Schematically, the support frame 562 includes a fixed part and a connecting part. The fixed part and the connecting part are arranged at an angle. The fixed part is connected to the cover plate 522. One end of the connecting part is connected to the fixed part, and the other end is connected to the outer surface of the cooling sleeve 561.

[0069] Furthermore, in one embodiment, Figure 2 、 Figure 4 and Figure 6As shown, the detection assembly 5 includes a light shielding plate 555, a transmission rod 553 and a driving member 551. The light shielding plate 555 is movably arranged between the photon detector 51 and the cavity partition 57. The driving member 551 is arranged outside the detection cavity 52. ​​One end of the transmission rod 553 is driven and connected to the driving member 551, and the other end extends into the detection cavity 52a and is connected to the light shielding plate 555. The transmission rod 553 is rotatably connected to the detection cavity 52. ​​The light shielding plate 555 has a light shielding position and a light guiding position. In the light shielding position, the light shielding plate 555 is arranged opposite to the transparent detection window 572, and is sealed with the cold sleeve 561 to prevent light from entering the photon detector 51; in the light guiding position, the light shielding plate 555 and the transparent detection window 572 are staggered in the relative directions of the photon detector 51 and the transparent detection window 572. The light shielding plate 555 can switch between the light shielding position and the light guiding position under the drive of the driving member 551. Thus, when the connection between the mounting cavity 41 and the cavity partition 57 is released to open the opening of the mounting cavity 41a, the driver 551 can drive the light shielding plate 555 to the light shielding position, thereby enabling the light shielding plate 555 to block light from entering the photon detector 51 by being arranged opposite the transparent detection window 572 and sealingly cooperating with the cold sleeve 561, thereby preventing the photon detector 51 from being exposed for too long when loading or replacing the sample to be tested, thereby preventing damage to the photon detector 51. During testing, the driver 551 can move the light shielding plate 555 to the light guiding position, placing the photon detector 51 in an exposed state, thereby enabling the photon detector 51 to accurately detect photons emitted by the sample to be tested, thereby completing the aging test.

[0070] Schematically, a light shielding sealing ring is provided on one side of the cold sleeve 561 close to the light shielding plate 555. In the light shielding position, the light shielding plate 555 can be sealed and matched with the cold sleeve 561 through the light shielding sealing ring, so that the light shielding plate 555 can play a light shielding effect.

[0071] For example, in one embodiment, the driving member 551 is disposed on a side of the detection chamber 52 that faces away from the mounting assembly 4. The extension direction of the transmission rod 553 is consistent with the relative direction between the photon detector 51 and the transparent detection window 572 and is rotatably connected to the detection chamber 52. The light shielding plate 557 is disposed parallel to the transparent detection window 572. In this way, when the driving member 551 drives the transmission rod 553 to rotate relative to the detection chamber 52, the light shielding plate 557 can move between the light shielding position and the light guiding position by rotating on a plane, as shown in FIG. Figure 4As shown. In other embodiments, the driving member 551 can also be disposed on the outside of the side wall of the detection chamber 52, the transmission rod 553 extends perpendicular to the relative direction between the photon detector 51 and the transparent detection window 572, and is rotatably connected to the detection chamber 52. The light shielding plate 557 is rotatably disposed between the cold sleeve 561 and the transparent detection window 572. In the light-blocking position, the light shielding plate 557 and the transparent detection window 572 are disposed opposite each other. In the light-guiding position, the relative direction between the transparent detection window 572 and the photon detector 51 is arranged at an angle to the thickness direction of the light shielding plate 557, so that the light shielding plate 557 and the transparent detection window 572 are offset in the relative direction between the photon detector 51 and the transparent detection window 572. In this way, when the driving member 551 drives the transmission rod 553 to rotate relative to the detection chamber 52, the light shielding plate 557 can rotate between the light-blocking position and the light-guiding position by flipping between the photon detector 51 and the transparent detection window 572.

[0072] Indicative, such as Figure 4 As shown, a fixing member 554 is provided on the outer surface of the cold jacket 561. The end of the transmission rod 553 facing away from the driving member 551 passes through the fixing member 554 and is connected to the light shielding plate 555. The transmission rod 553 is rotatably connected to the fixing member 554. In this way, the fixing member 554 can define the position of the transmission rod 553 within the detection chamber 52a, thereby ensuring that when the driving member 551 rotates the transmission rod 553, the light shielding plate 555 can reliably move between the light shielding position and the light guiding position, thereby ensuring the reliability of the photon detector 51.

[0073] Optionally, in one embodiment, Figure 4 、 Figure 6 and Figure 7As shown, the relative direction of the photon detector 51 and the transparent detection window 572 is consistent with the extension direction of the transmission rod 553, the light shielding plate 555 is arranged parallel to the transparent detection window 572, and the detection assembly 5 includes a limit plate 556, which is arranged on the side of the light shielding plate 555 close to the transparent detection window 572 and opposite to the transparent detection window 572. A detection port opposite to the transparent detection window 572 is opened on the limit plate 556, and a first limit protrusion 556a and a second limit protrusion 556b are protruded on the side of the limit plate 556 facing the cold sleeve 561. The first limit protrusion 556a and the second limit protrusion 556b are respectively arranged on opposite sides of the limit plate 556 and are both connected to the cold sleeve 561. In the light shielding position, the light shielding plate 555 abuts against the first limit protrusion 556a; in the light guiding position, the light shielding plate 555 abuts against the second limit protrusion 556b. In this way, when the driving member 551 drives the transmission rod 553, the light shielding plate 555 can rotate in the limiting space formed by the limiting plate 556, the first limiting protrusion 556a, the second limiting protrusion 556b and the cold sleeve. Specifically, when the light shielding plate 555 moves to the position abutting the first limiting protrusion 556a, the light shielding plate 555 can effectively block the light from entering the photon detector 51, thereby achieving a light shielding effect, that is, the light shielding plate 555 is in the light shielding position; when the light shielding plate 555 moves to the position abutting the second limiting protrusion 556b, the light shielding plate 555 can be completely offset from the transparent detection window 572 to ensure that the photons emitted by the sample to be detected can pass through the transparent detection window 572 and the detection port 556c and be captured by the photon detector 51. Therefore, the arrangement of the first limiting protrusion 556a and the second limiting protrusion 556b can ensure that the light shielding plate 555 can reliably move between the light shielding position and the light guiding position, thereby ensuring the reliability of the test.

[0074] Indicative, such as Figure 6 As shown, the second temperature detector 58 is arranged on the side of the limiting plate 556556 away from the cooling sleeve 61.

[0075] Optionally, in one embodiment, combined Figure 2 and Figure 4As shown, the outer surface of the detection cavity 52 is convexly provided with an opaque shading member 552, and the shading member 552 is provided with a transmission hole connected to the detection cavity 52a. The end of the transmission rod 553 away from the driving member 551 passes through the transmission hole and is connected to the shading plate 555. The transmission rod 553 is rotatably sealed with the hole wall of the transmission hole. In this way, when the driving member 551 drives the transmission rod 553 to rotate relative to the shading member 552, the shading member 552 can effectively prevent external light from entering the detection cavity 52a through the gap between the transmission rod 553 and the detection cavity 52, so as to ensure that the detection process is carried out under light-shielded conditions. In addition, since the transmission rod 553 can be rotatably sealed with the hole wall of the transmission hole, this can also effectively ensure that the detection process is carried out under closed conditions, so as to prevent external factors from affecting the reliability of the test.

[0076] Illustratively, a sealing ring is provided on the wall of the transmission hole, and the transmission rod 553 is sealed against the wall of the transmission hole via the sealing ring. Furthermore, the number of sealing rings can be multiple, such as two, three, or more, and the multiple sealing rings can be spaced apart along the extension direction of the transmission rod to ensure a sealing effect between the wall of the transmission hole and the transmission rod 553.

[0077] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An aging detection device, characterized in that: include: The mounting assembly includes a mounting cavity, a sample cell, and a heating assembly. The mounting cavity forms a light-proof mounting cavity with one end open. The sample cell and the heating assembly are both located in the mounting cavity, and the sample cell is disposed on the heating assembly. The sample cell is used to place a sample to be tested. The mounting cavity is provided with an air inlet interface and an air outlet interface. Both the air inlet interface and the air outlet interface are in communication with the mounting cavity, and the air outlet interface is used to allow the gas in the mounting cavity to flow out. A detection assembly, comprising a detection cavity, a photon detector, and a cavity partition. The detection cavity is disposed on the mounting cavity, forming a light-proof detection cavity with one end open, the opening of the detection cavity being arranged opposite to the opening of the mounting cavity, the photon detector being disposed within the detection cavity, the cavity partition cover being disposed at the opening of the detection cavity and being detachably sealed to the edge of the opening of the mounting cavity, the cavity partition being provided with a detection port opposite to both the photon detector and the sample cell, the detection port being sealed with a transparent detection window; a host, the host being electrically connected to the photon detector; A temperature controller, the temperature controller being electrically connected to the host and the heating component, and the temperature controller being capable of controlling the temperature of the sample cell component at a preset temperature through the heating component; A gas flow controller is used to connect the air inlet interface with the air source device, and the gas flow controller is used to control the flow of gas flowing into the installation cavity.

2. The aging detection device according to claim 1, characterized in that: The heating assembly includes a heating table, a heating tube and a first temperature detector. The sample pool is arranged on the heating table. The heating tube and the first temperature detector are both arranged on the heating table and are electrically connected to the temperature controller. The first temperature detector is used to detect the temperature of the heating table. The temperature controller can adjust the current flowing into the heating tube when the first temperature detector detects that the temperature is higher or lower than the preset temperature.

3. The aging detection device according to claim 2, characterized in that: The mounting assembly includes a heat-insulating frame and a bracket, both of which are arranged in the mounting cavity. One end of the bracket is connected to the cavity wall of the mounting cavity, and the other end is connected to the side of the heating platform away from the sample pool. The heat-insulating frame is arranged between the heating platform and the bracket. And / or, the installation cavity is further provided at a first vacuum joint, and the heating tube and the first temperature detector are both electrically connected to the temperature controller via the first vacuum joint.

4. The aging detection device according to claim 1, characterized in that: The detection assembly includes a cold sleeve, a cold conduction platform, and two cold conduction tubes, all of which are arranged in the detection cavity. The cold sleeve is arranged on the outer periphery of the photon detector, and the cold conduction platform is arranged in contact with the outer surface of the cold sleeve. One end of one of the two cold conduction tubes is connected to the liquid inlet end of the cold conduction platform, and the other end is used to communicate with the liquid outlet end of the cold conduction liquid device; one end of the other of the two cold conduction tubes is connected to the liquid outlet end of the cold conduction platform, and the other end is used to communicate with the liquid return end of the cold conduction liquid device.

5. The aging detection device according to claim 4, characterized in that: The detection component includes a second temperature detector, which is arranged between the photon detector and the transparent detection window. The second temperature detector is electrically connected to the temperature controller. A liquid cooling pump is arranged between one of the two cooling tubes and the cooling liquid device. The liquid cooling pump is connected to the temperature controller. When the second temperature detector detects that the temperature exceeds the preset detection temperature, the temperature controller can control the liquid cooling pump to increase the speed.

6. The aging detection device according to claim 4, characterized in that: The detection cavity is provided with two cooling liquid interfaces, one of which is used to connect the liquid outlet of the cooling liquid device with the corresponding cooling pipe, and the other of which is used to connect the liquid return end of the cooling liquid device with the corresponding cooling pipe; And / or, the detection assembly includes a support frame arranged in the detection cavity, one end of the support frame is connected to the side wall of the detection cavity, and the other end is connected to the cold sleeve.

7. The aging detection device according to claim 4, characterized in that: The detection assembly includes a light shielding plate, a transmission rod and a driving member. The light shielding plate is movably arranged between the photon detector and the cavity partition. The driving member is arranged outside the detection cavity. One end of the transmission rod is drivingly connected to the driving member, and the other end extends into the detection cavity and is connected to the light shielding plate. The transmission rod is rotatably connected to the detection cavity. The light shielding plate has a light shielding position and a light guiding position. In the light shielding position, the light shielding plate is arranged opposite to the transparent detection window and is sealed with the cold sleeve to prevent light from entering the photon detector. In the light-guiding position, the shading plate and the transparent detection window are staggered in the relative direction of the photon detector and the transparent detection window, and the shading plate can move between the light-guiding position and the light-shielding position under the drive of the driving member.

8. The aging detection device according to claim 7, characterized in that: The relative direction between the photon detector and the transparent detection window is consistent with the extension direction of the transmission rod, the light shielding plate is arranged parallel to the transparent detection window, and the detection component includes a limit plate, which is arranged on the side of the light shielding plate close to the transparent detection window and opposite to the transparent detection window. A detection port opposite to the transparent detection window is provided on the limit plate, and a first limit protrusion and a second limit protrusion are protruded on the side of the limit plate facing the cold sleeve. The first limit protrusion and the second limit protrusion are respectively arranged on opposite sides of the limit plate and are both connected to the cold sleeve. In the light shielding position, the light shielding plate abuts against the first limit protrusion; in the light guiding position, the light shielding plate abuts against the second limit protrusion.

9. The aging detection device according to claim 7, characterized in that: An opaque shading member is convexly provided on the outer surface of the detection cavity, and the shading member is provided with a transmission hole connected to the detection cavity. The end of the transmission rod away from the driving member passes through the transmission hole and is connected to the shading plate, and the transmission rod and the hole wall of the transmission hole are rotatably sealed.

10. The aging detection device according to claim 1, characterized in that: The detection cavity is provided with a second vacuum connector, and the photon detector is electrically connected to the host through the second vacuum connector; And / or, the detection cavity is provided with a vacuum interface, the vacuum interface is communicated with the detection cavity, and the vacuum interface is used to communicate with a vacuum pumping device.

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